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Securities (Amortized Cost and Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 2,509	$ 2,518
Due from one to five years, Amortized Cost	8,990	11,003
Available-for-sale Securities Total, Amortized Cost	11,884	14,055
Due in one year or less, Fair Value	2,505	2,518
Due from one to five years, Fair Value	8,975	10,987
Available-for-sale Securities Total, Fair Value	11,878	14,058
Mortgage-Backed Securities - Residential [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	258	345
No single maturity, Fair Value	268	357
Available-for-sale Securities Total, Fair Value	268	357
Collateralized Mortgage Obligations [Member]
Schedule Of Available For Sale Securities [Line Items]
No single maturity, Amortized Cost	127	189
No single maturity, Fair Value	130	196
Available-for-sale Securities Total, Fair Value	$ 130	$ 196

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- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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